231233032432 has 20 divisors (see below), whose sum is σ = 448148682720. Its totient is φ = 115581759488.

The previous prime is 231233032427. The next prime is 231233032463. The reversal of 231233032432 is 234230332132.

It is a self number, because there is not a number n which added to its sum of digits gives 231233032432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2117368 + ... + 2223895.

It is an arithmetic number, because the mean of its divisors is an integer number (22407434136).

Almost surely, 2^231233032432 is an apocalyptic number.

It is an amenable number.

231233032432 is a deficient number, since it is larger than the sum of its proper divisors (216915650288).

231233032432 is a wasteful number, since it uses less digits than its factorization.

231233032432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4344600 (or 4344594 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 231233032432 its reverse (234230332132), we get a palindrome (465463364564).

The spelling of 231233032432 in words is "two hundred thirty-one billion, two hundred thirty-three million, thirty-two thousand, four hundred thirty-two".